| Acronym | Definition |
|---|
| TCTC | Tri-County Technical College (South Carolina) |
| TCTC | Tennessee Christian Teen Convention |
| TCTC | The Cooper Temple Clause (band) |
| TCTC | The Chronicles of Thomas Covenant (Stephen R. Donaldson books) |
| TCTC | Too Close to Call |
| TCTC | Thelema Coast to Coast |
| TCTC | The Clinical Trial Company |
| TCTC | Tennant Creek Town Council (Australia) |
| TCTC | Twin Cities Tandem Club (Minnesota) |
| TCTC | Total Cost to Company |
| TCTC | Transportation Corps Technical Committee |
| TCTC | Tri-County Telephone Company (New Richmond, Indiana) |
| TCTC | Trans-City Transport Company (Ibadan, Nigeria) |
| TCTC | Transit Case Technical Control |
| TCTC | Two Channel Transform Coder |
| TCTC | TRADOC Commanders Training Conference (US Army) |
